TLK106LRHBT Equivalent & Substitute Parts

Part Overview

The TLK106LRHBT is a 1/1 transceiver IC manufactured by Texas Instruments, designed for MII and RMII protocol applications in a 32-VQFN (5x5) surface mount package. This component operates within a 3V to 3.6V supply voltage range and supports operating temperatures from -40°C to 105°C. The device is classified as "Not For New Designs," indicating that Texas Instruments has discontinued active development for this product line. Organizations currently using this component or requiring functional equivalents for legacy system maintenance and reproduction must identify suitable substitute parts that maintain compatibility with existing designs while meeting current supply chain availability.

Substiute Parts

TLK106LRHBT

Texas InstrumentsIn Stock: 1373TLK106LRHBT Datasheet

Current PartRFQ

DP83822IRHBT

Texas InstrumentsIn Stock: 3451DP83822IRHBT Datasheet

MFR RecommendedRFQ

Z8523310VSG

ZilogIn Stock: 1043Z8523310VSG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLK106LRHBT are identified based on the following critical parameters that determine functional and physical compatibility:

Primary Compatibility Criteria:

• Interface protocol support (MII, RMII)
• Package type and pin count (32-VQFN 5x5)
• Supply voltage range overlap
• Mounting type (Surface Mount)
• Driver/Receiver configuration (1/1)

Substitute Classification:

The DP83822IRHBT from Texas Instruments qualifies as a primary substitute. It maintains the same 32-VQFN (5x5) package, supports identical MII and RMII protocols, operates as a 1/1 transceiver, and uses surface mount technology. The supply voltage range (1.71V ~ 3.45V) encompasses the original part's 3V ~ 3.6V requirement. This part carries Active product status, ensuring ongoing manufacturer support and supply chain availability.

The Z8523310VSG from Zilog represents a secondary substitute option. While it maintains surface mount technology and ROHS3 compliance, it differs in critical parameters: the package is 44-PLCC (44-LCC J-Lead) rather than 32-VQFN, and the supply voltage range is 4.5V ~ 5.5V, which does not overlap with the original part's 3V ~ 3.6V specification. This part is suitable only for applications where package and voltage requirements can be accommodated through design modification.

Parameter Comparison

Engineering Selection Recommendations

DP83822IRHBT is the recommended substitute for direct replacement applications. This part maintains identical package geometry (32-VQFN 5x5), protocol support (MII, RMII), and driver/receiver configuration (1/1). The supply voltage range (1.71V ~ 3.45V) is compatible with the original specification (3V ~ 3.6V). Both parts carry ROHS3 compliance and equivalent moisture sensitivity ratings (MSL 2). The DP83822IRHBT holds Active product status, ensuring manufacturer support and supply chain continuity. No PCB redesign or voltage regulation modifications are required for this substitution.

Z8523310VSG requires design-level evaluation before implementation. The 44-PLCC package necessitates PCB layout changes and potential footprint redesign. The supply voltage range (4.5V ~ 5.5V) does not overlap with the original part's 3V ~ 3.6V specification, requiring voltage regulation circuit modifications. The higher moisture sensitivity level (MSL 3, 168 hours) may impact storage and handling procedures. This substitute is applicable only when design flexibility permits package and voltage system changes.

Frequently Asked Questions (FAQ)

Q: Can the DP83822IRHBT be used as a direct drop-in replacement for the TLK106LRHBT?

A: Yes, the DP83822IRHBT is suitable for direct replacement in applications requiring no PCB modifications. Both parts use the 32-VQFN (5x5) package, support MII and RMII protocols, and operate within compatible voltage ranges. The supply voltage range of the DP83822IRHBT (1.71V ~ 3.45V) encompasses the original part's 3V ~ 3.6V requirement.

Q: What are the key differences between the DP83822IRHBT and Z8523310VSG?

A: The DP83822IRHBT maintains the same 32-VQFN package and voltage range as the original TLK106LRHBT, requiring no design changes. The Z8523310VSG uses a 44-PLCC package and operates at 4.5V ~ 5.5V, necessitating PCB redesign and voltage system modifications. The Z8523310VSG is suitable only when design flexibility permits these changes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts (DP83822IRHBT and Z8523310VSG) are ROHS3 compliant, matching the original TLK106LRHBT specification.

Q: What is the significance of the TLK106LRHBT being classified as "Not For New Designs"?

A: This classification indicates that Texas Instruments has discontinued active development and support for this product line. Existing inventory may be available, but long-term supply cannot be guaranteed. Substitute parts with Active product status (such as the DP83822IRHBT) provide assured supply chain continuity for ongoing production and future applications.

Q: Does the moisture sensitivity level (MSL) difference between parts affect substitution?

A: The TLK106LRHBT and DP83822IRHBT both carry MSL 2 (1 Year), requiring identical storage and handling procedures. The Z8523310VSG carries MSL 3 (168 Hours), requiring more stringent moisture control during storage and handling. This difference does not prevent substitution but requires adherence to the more restrictive handling requirements if the Z8523310VSG is selected.

Q: Can the Z8523310VSG be used in existing TLK106LRHBT designs without modification?

A: No. The Z8523310VSG requires design modifications due to package differences (44-PLCC vs. 32-VQFN) and incompatible supply voltage range (4.5V ~ 5.5V vs. 3V ~ 3.6V). PCB layout changes and voltage regulation circuit modifications are necessary.